29 August, 2014

Struts - In What Ways Does It Support Java Programming

Apache Software Foundation (ASF) has developers Struts as an open source web application development. The framework is being used widely by programmers to create Java EE internet applications. It enables web developers to create application by using model-view-controller (MVC) architecture by adopting and extending the Java Servlet API. The Java programmers also have option to use WebWork, a framework spun from Struts. Despite retaining the original architecture of Struts, WebWork comes with several enhancements and refinements. Thus, the Java programmers can rely on Struts to create large and complex enterprise application by keeping the model separate from view and controller.


How Struts Supports Java Programming?

Facilitates Development of Large Java EE Web Applications
Java application development
Normally, a standard Java EE internet app uses web forms to make the client typically call the server. The developers can make the web form entrust the information to a Java Servlet. The Java Servlet will interact with the server, and generate the response in HTML format. Otherwise, the programmers can transfer the information to a Java Server Page (JSP) document. The JSP document will generate the response by intermingling HTML and Java code. The two approaches can be used effectively by developers for small and simple web applications. But they must keep the application logic and project separate to maintain large application smoothly. That is why, the programmers use Struts to simplify the maintenance of larger internet apps by keeping the presentation and logic separate.

Helps in Keeping Model Separate from View and Controller
As noted earlier, Struts allows Java programmers to create and maintain large projects without putting any extra effort. The web application development framework is designed with features to keep the business logic separate from presentation and controller. It allows developers to write templates from view or presentation layer by using a controller known as ActionServlet. The servlet supports JSP and Velocity along with XML and XSLT. Thus, the developers can simply write the model code, and bind model, view and controller by creating a central configuration file called struts-config.xml.

Uses XML based configuration files
Struts collects configuration data from the application provider by through XML based configuration files. The centralized XML based configuration makes it easier for developers to create XML files to configure the application’s properties. These XML files can be further hard coded into Java classes without writing any complex code. Thus, the properties of an application can be modified simply by modifying a single file. Thus, Struts enables programmers to avoid modifying or recompiling Java code whenever the application’s properties change.

Simplifies Internet Application Development, Deployment and Maintenance
As Struts allows the separation of model, view and controller separate, it becomes easier for the enterprise to curtail development time by deploying different teams. A company can deploy different developers to work on the GUI, business logic and controller. So it can easily create large web applications within a stipulated time frame. Struts allow programmers to change the look and feel of the application without recompiling the model. Further, multiple views can be used with the same server side code. The option makes it easier for programmers to update and maintain large enterprise web applications. At the same time, Struts enables developers to reduce deployment time by availing readymade Validation controls, Custom tags and Form Beans for request parameters.

However, the Java developers also need to understand some of the major disadvantages of Struts. As Struts provides only one ActionServlet, the programmers may find it difficult to accomplish scalability. Likewise, it also does not support backward flow and exceptions. But the open source web development framework still helps Java programmers in completing large projects by availing the benefits of MVC architecture.

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